Paper 2 practicals

Question 1

What does reaction time measure?

Answer 1

Reaction time measures how quickly an individual responds to a stimulus, indicating the efficiency of their nervous and muscular systems.

Question 2

Which part of the body is responsible for processing information and determining the response?

Answer 2

brain

Question 3

Plants respond to e____________ factors such as g______ and l____, which play crucial roles in their g_____ and d__________.

Answer 3

Plants respond to environmental factors such as gravity and light, which play crucial roles in their growth and development.

Question 4

Give an independent variable in Investigating the effect of light on newly germinated seedlings:

Answer 4

Light exposure

Question 5

Give a dependent variable on Investigating the effect of light on newly germinated seedlings:

Answer 5

Height of seedlings

Question 6

Give a control variable on Investigating the effect of light on newly germinated seedlings:

Answer 6

Type of seeds
Volume of water
Germination environment.

Question 7

Where should the petri dishes be placed during germination?

Answer 7

in a warm place

Question 8

What should be measured every day for a week in the practical ‘Investigating Plant Response’?

Answer 8

the height of each seedling

Question 9

How long should the height of the seedlings be measured?

Answer 9

for a week